ABB 5HK Series Instrucciones de instalación y funcionamiento

Este manual sirve para los siguientes modelos

3

Tabla de contenidos

Otros manuales de Cortacircuitos de ABB

ABB

ABB SACE Emax E2.2 Guía del usuario

ABB

ABB Tmax T7 Manual

ABB

ABB SACE Emax Series Manual

ABB

ABB SACE Emax 2 - Tmax XT Manual de usuario

ABB

ABB SACE Tmax T4 Manual de usuario

ABB

ABB VD4X Manual de usuario

ABB

ABB VM1 Manual de usuario

ABB

ABB HD4/R Manual de usuario

ABB

ABB FSK II S + Instrucciones de funcionamiento

ABB

ABB SACE Emax 2 E2.2 Manual de usuario

ABB

ABB VM1 Guía rápida

ABB

ABB HD4/ESB Series Guía rápida

ABB

ABB T7-T7M-X1 Guía del usuario

ABB

ABB AKD6-800A Manual de usuario

ABB

ABB ADVAC Instrucciones de instalación y funcionamiento

ABB

ABB AF40 Manual de usuario

ABB

ABB Tmax MIR-V Manual de usuario

ABB

ABB SACE Emax 2 Manual de usuario

ABB

ABB DEH41820 Manual de usuario

ABB

ABB DCBreak Series Manual de programación

ABB

ABB SACE Emax 2 Manual de usuario

ABB

ABB Mechanism HMB-8 Manual de usuario

ABB

ABB SACE Tmax XT5 Manual de usuario

ABB

ABB SACE Emax 2 E2.2 Manual de usuario

Manuales populares de Cortacircuitos de otras marcas

Eaton

Eaton NOVA LBS 15 Manual de usuario

Gewiss

Gewiss 90 RCD Manual de usuario

Siemens

Siemens SIRIUS 3RV1742 Manual de usuario

WEG

WEG FHU ACW125 Manual de usuario

Siemens

Siemens Sentron 3VA9157-0PK1 Series Manual de usuario

hager

hager TS 303 Instrucciones de instalación

ETI

ETI EFI-4B Manual de usuario

nader

nader NDM3EU-225 Manual de usuario

TERASAKI

TERASAKI NHP TemBreak PRO P160 Series Manual de usuario

Gladiator

Gladiator GCB150 Manual de usuario

Eaton

Eaton 50DHP-VR Manual

OEZ

OEZ LFN Manual de usuario

Eaton

Eaton Power Defense PDG2 Manual

Bticino

Bticino L4412CM2 Manual de usuario

Eaton

Eaton S-T0 Manual

GE

GE EntelliGuard G Manual de usuario

OEZ

OEZ 3VA9-RS-4VBH1 Manual

Siemens

Siemens PSR Manual de programación

IB

6.2

.

1.7

D

Installation

/

Maintenance

Instructions

Medium

-

Voltage

Power

Circuit

Breakers

Type

5

HK

1200

thru

3000

Amperes

5000

Volts

JL

llll

Mllll

ABB

Power

Distribution

,

Inc

.

Circuit

Breaker

Division

ASEA

BROWN

BOVERI

Courtesy of NationalSwitchgear.com

IB

6.2

.

1.7

D

Page

2

Ann

MIPIP

ASEA

BROWN

BOVERI

J

CONTENTS

PAGE

INTRODUCTION

RECEIVING

AND

STORAGE

CIRCUIT

BREAKER

INSTALLATION

INFORMATION

General

Installation

Inspection

Removing

Interphase

Barrier

Removing

Arc

Chutes

Insulation

Structure

Manual

Slow

-

close

to

Check

Contact

Pressure

Installing

Arc

Chutes

Installing

Interphase

Barriers

Installing

Circuit

Breaker

into

Compartment

CIRCUIT

BREAKER

REMOVAL

Removal

From

Connected

Position

Disconnect

Position

Removal

from

Switchboard

Safe

Operation

Recommendations

MAINTENANCE

AND

ADJUSTMENTS

General

Information

Contact

Pressure

Contact

and

Insulation

Cleaning

Millivolt

Drop

Test

Puffers

Bridge

Pivot

Opening

Times

Closing

and

Opening

Times

Arc

Chutes

Operating

Mechanism

Control

Relay

Adjustment

Racking

Mechanism

Lubrication

Dielectric

Tests

Electrical

Characteristics

of

Control

Devices

.

.

..

ELECTRICAL

OPERATING

SEQUENCE

GROUND

AND

TEST

DEVICES

RENEWAL

PARTS

3

3

3

3

3

3

4

4

4

5

5

5

6

6

6

J

r

'

6

6

6

6

7

8

8

8

9

9

9

9

10

10

10

11

11

11

12

13

)

Courtesy of NationalSwitchgear.com

IB

6.2

.

1.7

D

Page

3

AII

It

MIPIP

ASEA

BROWN

BOVERI

Section

3

.

CIRCUIT

BREAKER

INSTALLATION

3.1

GENERAL

Priorto

installation

of

thecircuit

breaker

into

a

switchboard

,

certain

preliminary

inspections

are

made

to

ensure

proper

operation

.

Section

1

.

INTRODUCTION

These

instructions

for

installation

,

operation

and

mainte

-

nance

of

HK

circuit

breakers

should

be

read

carefully

and

used

as

a

guide

during

installation

and

initial

operation

.

The

specific

ratings

of

each

model

circuit

breaker

are

listed

on

the

individual

nameplates

.

File

these

instructions

in

a

readily

accessible

place

to

-

gether

with

drawing

and

descriptive

data

of

the

switchgear

.

These

instructions

are

guides

to

proper

maintenance

of

the

equipment

to

prolong

its

life

and

usefulness

.

CAUTION

CAUTION

CAUTION

CAUTION

PRIOR

TO

ANY

DISASSEMBLY

OR

INSPECTION

OF

THE

CIRCUIT

BREAKER

THE

CLOSING

SPRINGS

SHOULD

BE

DISCHARGED

AND

THE

BREAKER

SHOULD

BE

OPEN

.

IF

IT

IS

NECESSARY

TO

RAISE

OR

MOVE

THE

BREAKER

ATTACH

THE

LIFTING

YOKE

AT

POINTS

4

(

FIGURE

1

)

,

OR

A

FIFTH

WHEEL

AT

POINT

7

(

FIGURE

2

)

TO

TRANSPORT

THE

BREAKER

AS

RE

-

QUIRED

.

Section

2

.

RECEIVING

AND

STORAGE

Immediately

upon

receipt

of

the

circuit

breakers

,

examine

the

cartons

to

determine

if

any

damage

or

loss

was

sus

-

tained

during

transit

.

If

injury

or

rough

handling

is

evident

,

file

a

damage

claim

at

once

with

the

carrier

and

promptly

notify

the

nearest

district

office

.

Asea

Brown

Boveri

,

Inc

.

is

not

responsible

for

damage

of

goods

after

delivery

to

the

carrier

.

However

,

the

company

will

lend

assistance

if

noti

-

fied

of

claims

.

Unpack

the

circuit

breakers

as

soon

as

possible

after

receipt

.

If

unpacking

is

delayed

,

difficulty

may

be

experi

-

enced

in

making

a

claim

for

damages

not

evident

upon

receipt

.

Use

care

in

unpacking

in

order

to

avoid

damaging

any

of

the

circuit

breaker

parts

.

Check

the

contents

of

each

carton

against

the

packing

list

before

discarding

any

pack

-

ing

material

.

If

any

shortage

of

material

is

discovered

,

promptly

notify

the

nearest

district

office

.

Information

speci

-

fying

the

purchase

order

number

,

sales

order

number

,

carton

number

and

part

numbers

of

the

damaged

or

miss

-

ing

part

should

accompany

the

claim

.

Circuit

breakers

should

be

installed

in

their

permanent

location

as

soon

as

possible

.

If

the

breakers

are

not

to

be

placed

in

service

for

some

time

,

it

is

requ

ired

that

adequate

means

of

protection

be

provided

.

This

may

be

done

by

keeping

the

breaker

in

its

original

shipping

carton

and

storing

in

a

warm

(

approximately

15

°

C

)

dry

(

50

%

max

humidity

)

and

uncontaminated

atmosphere

.

If

the

circuit

breaker

cannot

be

stored

properly

due

to

abnormal

circum

-

stances

,

it

must

be

thoroughly

checked

before

going

into

service

to

ensure

that

it

is

without

damage

and

it

has

not

become

generally

contaminated

.

3.2

INSTALLATION

INSPECTION

Inspect

condition

of

circuit

breaker

arc

chutes

,

contact

and

electrical

connections

priorto

installing

the

circuit

breaker

into

the

switchboard

.

Even

though

each

circuit

breaker

is

completely

adjusted

and

tested

at

the

factory

,

shipping

and

handling

conditions

could

cause

defects

.

3.3

REMOVING

INTERPHASE

BARRIER

For

5

HK

75

,

150

and

250

,

remove

two

lower

front

sheet

screws

,

lift

straight

up

above

arc

chutes

by

grasping

front

handle

and

top

sheet

at

rear

,

then

draw

barrierforward

and

away

from

circuit

breaker

.

For

5

HK

350

,

remove

two

lower

front

sheet

screws

,

and

lift

front

sheet

up

and

away

from

the

breaker

.

Remove

arc

chute

tie

bar

at

upper

front

of

arc

chutes

.

Pivot

rear

brace

at

rear

of

each

barrier

upward

and

slide

the

separate

barriers

forward

and

away

from

the

circuit

breaker

.

CAUTION

CAUTION

CAUTION

CAUTION

THE

5

HK

350

BARRIERS

WILL

NOT

STAND

UNSUP

-

PORTED

AND

MUST

BE

BRACED

.

These

instructions

do

not

purport

to

cover

all

details

or

variations

in

equipment

nor

to

provide

for

every

possible

contingency

to

be

met

in

connection

with

installation

,

operation

or

maintenance

.

Should

further

information

be

desired

or

should

particular

problems

arise

which

are

not

covered

sufficiently

for

purchaser

'

s

purposes

the

matter

should

be

referred

to

the

nearest

District

Office

.

Courtesy of NationalSwitchgear.com

IB

6.2

.

1.7

D

Page

4

A

»

11

MIPIP

ASEA

BROWN

BOVERI

3.4

REMOVING

ARC

CHUTES

(

See

Figure

1

)

For

5

FIK

75

,

150

and

250

,

remove

nut

(

6

)

and

gently

disconnect

return

connection

(

5

)

.

Grasp

the

arc

chute

(

I

)

at

the

front

and

top

and

gently

tilt

on

its

pivot

towards

the

rear

until

it

rests

on

the

lead

support

molding

(

2

)

.

If

other

than

visual

inspection

is

to

be

done

,

the

arc

chute

,

in

the

tilted

position

,

should

be

lifted

straight

out

of

the

pivot

guide

slots

and

fingers

and

removed

from

the

circuit

breaker

.

For

5

HK

350

,

remove

nut

(

6

)

and

gently

disconnect

return

connection

(

5

)

.

Remove

bolt

connecting

the

front

leg

of

the

arc

chute

to

the

block

on

the

base

sheet

of

the

circuit

breaker

.

Attach

the

accessory

lifting

bracket

to

the

tie

bar

bushing

at

the

top

front

of

the

arc

chute

and

slowly

raise

the

arc

chute

as

required

by

means

of

a

hoist

.

It

will

pivot

at

its

terminal

connection

and

then

should

be

guided

straight

out

of

the

pivot

guide

slot

and

fingers

and

removed

away

from

the

circuit

breaker

.

If

only

a

visual

examination

is

to

be

made

,

each

arc

chute

may

be

tilted

back

gently

,

hand

held

and

then

slowly

lowered

.

3.5

ARC

CHUTE

EXAMINATION

Examine

arc

chutes

carefully

before

placing

into

service

.

Look

for

any

breakage

to

liner

plates

and

arc

chute

plates

.

Check

for

presence

of

any

foreign

particles

such

as

chips

of

ceramic

and

metal

.

Inspect

exterior

for

any

damage

or

deformation

.

The

polyester

glass

moldings

occasionally

have

some

small

cracks

develop

in

resin

-

rich

areas

,

but

these

cracks

do

not

indicate

defective

material

and

should

not

cause

concern

.

3.6

INSULATION

STRUCTURE

All

insulated

parts

should

be

checked

for

damage

.

Any

dust

or

dirt

should

be

removed

by

compressed

air

or

wiped

with

a

clean

,

lint

-

free

cloth

saturated

with

an

oil

-

free

solvent

.

This

is

important

because

the

soot

or

dirt

can

accumulate

and

,

with

moisture

,

place

the

circuit

breaker

in

jeopardy

,

dielectrically

.

The

lead

support

moldings

are

polyester

glass

and

occasionally

have

some

resin

-

rich

cracks

or

crazing

develop

,

but

these

do

not

indicate

defective

mate

-

rial

and

should

not

cause

concern

.

CAUTION

CAUTION

CAUTION

CAUTION

3.7

MANUAL

SLOW

-

CLOSE

TO

CHECK

CONTACT

PRESSURE

(

Figure

2

)

NOTE

:

Ensure

that

accessories

that

affect

electrical

/

me

-

chanical

operation

are

set

in

their

operating

positions

:

i

.

e

.

,

undervoltage

devices

should

be

energized

or

mechanically

closed

;

mechanical

interlocks

,

key

or

other

,

should

be

properly

set

,

etc

.

1

.

Turn

racking

screw

clockwise

approximately

two

to

three

turns

until

the

racking

-

unlocking

lever

snaps

into

the

first

position

corresponding

to

the

“

DISCONNECT

”

position

.

2

.

Engage

manual

charge

handle

(

8

)

with

charging

lever

(

3

)

.

Pump

charging

lever

until

breakerclosing

springs

snap

into

charge

position

,

then

remove

handle

.

3

.

Insert

BOTH

tangs

of

spring

retainer

bracket

(

7

)

into

holes

of

closing

spring

guides

(

2

)

.

4

Pull

manual

close

lever

(

4

)

to

discharge

closing

springs

onto

tangs

of

spring

retainer

bracket

(

7

)

.

At

this

time

the

contacts

will

partially

close

.

5

.

Re

-

engage

manual

charge

handle

(

8

)

with

charging

lever

(

3

)

,

then

slowly

pump

to

slow

-

close

breaker

contacts

.

Check

contact

pressure

as

listed

in

paragraph

5.2

.

Use

the

manual

trip

button

(

6

)

to

open

the

breaker

.

6

.

To

remove

spring

retainer

bracket

(

7

)

from

circuit

breaker

,

continue

pumping

until

closing

springs

are

again

heard

to

snap

into

fully

-

charged

position

.

Spring

retainer

bracket

can

now

be

removed

.

7

.

Discharge

closing

springs

by

pulling

manual

close

lever

(

4

)

and

pushing

manual

trip

button

(

6

)

at

the

same

time

to

effect

trip

-

free

operation

.

(

The

breaker

can

also

be

closed

first

and

then

tripped

.

)

BE

SURE

RETURN

CONNECTION

IS

CLEAR

AND

DOES

NOT

CATCH

ON

THE

ARC

CHUTE

.

ALSO

BLOCK

WHEELS

TO

PREVENT

BREAKER

FROM

ROLLING

.

)

Fig

.

1

-

View

Showing

Chute

and

Contact

Structure

Courtesy of NationalSwitchgear.com

IB

6.2

.

1.7

D

Page

5

Aim

MIPIP

ASEA

BROWN

BOVERI

8

.

Lift

front

sheet

in

place

so

that

it

looks

over

the

arc

tie

bar

.

9

.

Secure

the

barrier

front

sheet

in

place

with

the

two

lower

front

sheet

screws

.

CAUTION

CAUTION

CAUTION

CAUTION

ON

5

HK

350

,

FOR

OLDER

UNMARKED

BARRIERS

,

INSURE

THAT

THE

FLUX

SHUNT

PAD

IS

INSTALLED

BETWEEN

POLES

.

3.10

INSTALLING

CIRCUIT

BREAKER

INTO

COM

-

PARTMENT

(

See

Figures

2

and

3

)

NOTE

:

CLOCKWISE

ROTATION

of

racking

crank

for

inserting

breaker

.

COUNTERCLOCKWISE

rotation

of

racking

crank

for

removal

of

the

breaker

1

.

Turn

motor

disconnect

switch

(

if

supplied

) (

1

,

Figure

2

)

to

“

OFF

”

position

.

2

.

Engage

racking

crank

(

4

,

Figure

3

)

and

push

racking

unlocking

lever

(

3

)

to

left

,

then

rotate

racking

crankcounter

-

clockwise

only

until

resistance

to

motion

is

felt

.

(

DO

NOT

FORCE

.

)

3

.

Engage

f

ifth

wheel

with

hole

guide

(

5

,

Figure

2

)

and

push

circuit

breaker

into

compartment

until

stopped

.

(

If

closing

springs

were

left

in

charged

condition

,

they

will

automati

-

cally

discharge

.

)

4

.

Engage

racking

crank

and

rotate

clockwise

until

racking

mechanism

automatically

stops

at

“

DISCONNECT

”

posi

-

tion

.

(

Breaker

is

now

held

captive

in

compartment

.

)

5

.

To

rack

circuit

breaker

to

‘

TEST

”

position

,

push

racking

unlocking

lever

(

3

,

Figure

3

)

to

left

,

rotate

racking

crank

approximately

1

/

4

turn

clockwise

,

then

release

unlocking

lever

.

Continue

cranking

until

racking

mechanism

auto

-

matically

stops

at

“

TEST

’

position

.

6

.

With

the

circuit

breaker

racked

to

“

TEST

”

position

,

check

for

proper

operation

by

operating

all

possible

means

of

Fig

.

2

—

Front

View

of

Control

Panel

3.8

INSTALLING

ARC

CHUTES

(

See

Figure

I

)

Position

arc

chute

(

I

)

in

tilted

position

,

squarely

down

into

its

rear

pivot

guide

slots

and

fingers

(

avoid

bumping

and

chipping

of

all

moldings

)

,

then

lower

slowly

into

position

.

CAUTION

CAUTION

CAUTION

CAUTION

BE

SURE

RETURN

CONNECTION

IS

CLEAR

AND

NOT

CATCH

ON

THE

ARC

CHUTE

.

Securely

fasten

return

connection

(

5

)

by

its

nut

(

6

)

Also

,

on

5

HK

350

breakers

the

front

arc

chute

support

leg

must

be

secured

to

its

hold

down

block

.

3.9

INSTALLING

INTERPHASE

BARRIER

1

.

For

5

HK

75

,

150

and

250

,

lift

barrier

and

slide

it

approxi

-

mately

halfway

on

the

breaker

.

2

.

After

aligning

the

vertical

sheets

of

the

barrier

properly

between

the

lead

support

moldings

and

inside

the

clips

on

the

outside

moldings

,

slide

the

barrier

as

far

to

the

rear

as

possible

.

3

.

Lift

the

barrier

slightly

by

its

handle

at

the

lower

front

(

Figure

2

)

to

permit

the

rear

brace

of

the

barrier

to

drop

down

behind

the

arc

chutes

.

4

.

Push

firmly

down

and

back

on

the

barrier

handle

to

properly

position

the

interphase

barrier

in

place

.

5

.

Secure

the

barrier

in

place

with

the

two

lower

front

sheet

screws

.

6

.

For

the

5

HK

350

,

slide

the

right

and

left

interphase

barriers

,

as

marked

,

in

place

between

the

lead

support

moldings

and

inside

of

the

clips

on

the

outside

moldings

,

and

pivot

the

rear

brace

downward

hehind

the

arc

chutes

.

7

.

Install

the

arc

chute

tie

bar

at

the

upper

front

on

the

arc

chutes

.

Fig

.

3

-

Method

of

Racking

Circuit

Breaker

Courtesy of NationalSwitchgear.com

IB

6.2

.

1.7

D

Page

6

ABB

ASEA

BROWN

BOVERI

opening

and

closing

.

This

includes

control

switches

,

relays

,

etc

.

Turn

motor

disconnect

switch

(

1

,

Figure

2

)

to

“

ON

”

position

to

charge

the

closing

springs

,

and

operate

the

breaker

as

required

.

If

motor

disconnect

switch

(

1

,

Figure

2

)

is

not

provided

,

springs

will

automatically

charge

when

approaching

‘

TEST

portion

.

FOR

SAFETY

:

When

racking

circuit

breaker

to

“

CON

-

NECTED

”

position

,

close

compartment

door

(

1

,

Figure

3

)

and

insert

racking

crank

(

4

,

Fiqure

3

)

through

sliding

panel

(

2

,

Figure

3

)

.

7

.

Push

unlocking

lever

(

3

)

to

left

and

turn

racking

crank

(

4

)

approximately

1

/

4

turn

clockwise

,

then

release

unlocking

lever

.

Continue

cranking

until

racking

mecha

-

nism

automatically

stops

at

“

CON

NECTED

”

position

.

4.4

SAFE

OPERATION

RECOMMENDATIONS

1

.

It

is

recommended

that

any

circuit

breaker

be

withdrawn

and

stored

in

the

test

position

whenever

it

is

to

be

main

-

tained

in

the

open

position

with

no

planned

switching

.

2

.

It

is

recommended

that

a

ground

test

device

be

con

-

nected

to

the

proper

compartment

when

any

work

is

to

be

done

on

any

bus

or

feeder

circuit

.

Section

5

.

MAINTENANCE

AND

ADJUSTMENTS

5.1

GENERAL

INFORMATION

HK

circuit

breakers

are

designed

for

minimum

mainte

-

nance

and

tested

to

ensure

that

minimum

maintenance

will

be

required

.

Only

one

basic

adjustment

is

normally

re

-

quired

and

that

is

contact

adjustment

.

This

should

be

checked

to

the

dimensional

values

required

as

described

in

paragraph

5.2

.

Other

adjustments

are

required

only

when

operational

check

indicates

a

need

.

During

maintenance

checks

,

all

accessible

bolts

,

nuts

and

screws

should

be

routinely

checked

to

ensure

that

they

are

tight

.

It

is

recom

-

mended

that

the

5

HK

75

,

5

HK

150

and

5

HK

250

circuit

breakers

be

normally

inspected

after

2000

operations

and

that

the

5

HK

350

circuit

breakers

be

normally

inspected

after

1000

operations

.

These

operations

can

be

either

no

-

load

mechanical

or

load

current

switching

where

the

power

factor

is

relatively

high

.

When

the

circuit

breakers

are

used

for

direct

bulk

capacitor

or

reactor

switching

operations

or

for

motor

starting

applications

,

it

is

recommended

the

5

HK

75

,

5

HK

150

and

5

HK

250

circuit

breakers

be

inspected

after

1000

operations

and

that

the

5

HK

350

circuit

breakers

be

inspected

after

500

operations

because

of

the

switching

severity

If

however

,

after

the

first

inspection

period

,

there

is

no

indication

of

any

problem

,

actual

operating

experience

can

dictate

the

inspection

cycle

.

Regarding

maintenance

recommendations

following

fault

duty

,

reference

is

made

to

ANSI

Standard

C

37.04

to

which

the

circuit

breakers

have

been

tested

.

In

accordance

with

this

standard

,

a

total

of

400

%

asymmetrical

fault

duty

can

be

accumulated

.

This

is

to

be

ten

or

less

close

-

open

operations

at

less

than

85

%

of

full

duty

;

but

it

can

be

an

accumulation

over

a

long

time

period

of

lower

currents

.

The

condition

of

the

breaker

should

be

such

that

after

this

duty

it

is

capable

of

one

more

close

-

open

operation

at

full

fault

current

.

Inspection

is

to

be

made

at

this

time

to

ensure

compliance

with

this

requirement

.

Final

operation

can

be

made

if

everything

is

satisfactory

.

At

this

time

,

maintenance

should

be

performed

,

reconditioning

done

and

replace

-

ment

made

as

indicated

.

In

accordance

with

the

same

standard

it

is

recommended

that

after

a

major

fault

duty

cycle

(

CO

-

15

SEC

CO

)

Which

is

known

to

be

between

85

and

100

%

of

the

circuit

breaker

CAUTION

CAUTION

CAUTION

CAUTION

DO

NOT

ATTEMPT

TO

RACK

ANY

FURTHER

The

circuit

breaker

may

now

be

put

in

service

and

be

operated

as

required

Section

4

.

CIRCUIT

BREAKER

REMOVAL

(

See

Figure

3

)

4.1

REMOVAL

FROM

“

CONNECTED

”

POSITION

To

remove

circuit

breaker

from

“

CONNECTED

”

position

,

open

the

breaker

as

required

.

1

.

Open

sliding

door

(

2

)

in

front

compartment

door

(

1

)

.

2

.

Engage

racking

crank

(

4

)

and

push

racking

unlocking

lever

(

3

)

to

left

.

3

.

Rotate

racking

crank

(

4

)

counterclockwise

approxi

-

mately

1

/

4

turn

,

then

release

unlocking

lever

.

4

.

Continue

cranking

counterclockwise

until

racking

mechanism

automatically

stops

at

“

TEST

”

position

.

4.2

“

DISCONNECT

”

POSITION

Repeat

same

operation

for

"

DISCONNECT

”

position

.

4.3

REMOVAL

FROM

SWITCHBOARD

To

position

the

racking

mechanism

for

withdrawal

of

the

circuit

breaker

from

the

switchboard

,

again

push

racking

unlocking

lever

to

the

left

and

turn

racking

crank

counter

-

clockwise

only

until

resistance

to

motion

is

felt

.

(

Approxi

-

mately

2

-

3

turns

-

DO

NOT

FORCE

.

)

The

circuit

breaker

can

now

be

removed

from

the

compart

-

ment

by

pulling

on

the

handle

located

at

the

bottom

of

the

front

barrier

,

or

by

pulling

at

the

lower

edge

of

the

front

barrier

on

the

1200

and

2000

ampere

,

5

HK

350

breaker

.

NOTE

:

The

closing

springs

,

if

charged

,

will

automatically

discharge

when

the

circuit

breaker

is

withdrawn

from

the

switchboard

.

)

Courtesy of NationalSwitchgear.com

Aim

MIPIP

IB

6.2

.

1.7

D

Page

7

ASEA

BROWN

BOVERI

rated

asymmetrical

short

circuit

current

,

the

circuit

breaker

be

inspected

regardless

of

any

time

period

or

number

of

operations

.

Also

,

when

the

circuit

breaker

is

applied

on

reclosing

duty

,

it

should

be

inspected

immediately

afterthe

series

of

fault

operations

in

the

same

range

of

currents

.

The

condition

of

the

circuit

breaker

after

interruption

de

-

pends

on

circuit

conditions

regarding

such

things

as

power

factor

,

X

/

R

ratio

and

relay

delay

times

.

Experience

with

specific

circuits

will

indicate

the

future

amount

of

mainte

-

nance

that

will

be

required

for

the

various

breakers

and

then

procedural

modification

can

follow

.

Where

unusual

service

conditions

exist

,

as

covered

by

ANSI

Standard

C

37.04

,

it

must

be

assumed

that

these

conditions

were

considered

at

the

time

of

order

;

that

the

equipment

supplied

was

designed

for

the

special

applica

-

tion

;

and

that

an

appropriate

supplemental

maintenance

program

has

been

developed

.

These

maintenance

instruc

-

tions

cover

only

circuit

breakers

used

under

standard

usual

service

conditions

.

After

normal

service

without

major

fault

interruption

,

the

following

tests

and

adjustments

should

be

made

.

NOTE

:

The

following

tabulated

tests

and

adjustments

are

all

that

are

normally

necessary

for

proper

maintenance

and

operation

of

the

HK

circuit

breaker

.

The

remaining

portions

of

the

breaker

-

close

coil

assembly

,

shunt

trip

device

,

control

relay

,

auxiliary

switch

and

motor

—

require

no

main

-

tenance

during

the

standard

life

of

the

circuit

breaker

regardless

of

the

operatinq

duty

.

5.2

CONTACT

PRESSURE

(

See

Figure

4

)

(

A

)

With

the

circuit

breaker

withdrawn

from

the

switch

-

board

,

the

following

step

-

by

-

step

procedure

should

be

followed

for

properly

checking

and

/

or

adjusting

the

contact

pressure

on

an

“

HK

”

type

circuit

breaker

.

1

.

Remove

interphase

barrier

assembly

and

remove

arc

chutes

as

described

previously

.

2

Turn

racking

screw

clockwise

approximately

two

to

three

turns

until

the

racking

-

unlocking

lever

snaps

into

the

first

position

corresponding

to

the

‘

’

DISCONNECT

’

position

.

3

.

Manually

slow

-

close

the

circuit

breaker

as

described

in

parag

raph

3.7

,

but

only

to

the

point

that

the

arc

contacts

just

touch

.

All

arcing

contacts

shouldtouch

within

1

/

32

"

,

after

all

free

play

has

been

removed

by

pulling

the

bridge

arm

toward

the

open

position

.

4

.

Continue

the

slow

-

close

operation

to

fully

close

the

breaker

.

Each

pole

should

have

approximately

7

/

64

”

to

3

/

16

”

main

contact

compression

measured

at

"

A

”

between

the

edge

of

the

metal

stop

plate

and

the

main

contact

stop

.

(

This

dimension

measured

on

either

side

is

sufficient

)

.

A

rod

or

drill

of

these

sizes

can

be

used

for

measuring

.

Complete

charging

the

sprinqs

and

remove

the

slow

close

bracket

.

Fig

.

4

—

Contact

Pressure

and

Bridge

Pivot

Pressure

5

.

Open

the

breaker

.

Fast

close

the

breaker

.

Each

pole

should

have

between

7

/

64

"

to

3

/

16

"

main

contact

pressure

.

At

this

point

,

if

the

adjustments

are

correct

,

complete

steps

B

6

,

B

7

,

B

8

and

B

9

following

.

(

B

)

If

any

adjustment

is

incorrect

,

use

the

following

proce

-

dure

to

readjust

contact

pressure

or

to

initially

adjust

when

changes

are

made

.

1

Completely

slow

-

close

the

circuit

breaker

and

set

each

pole

for

7

/

64

"

main

contact

compression

at

"

A

”

(

A

7

/

64

”

rod

ordrill

should

fit

tightly

between

the

EDGE

of

the

metal

stop

plate

and

the

main

contact

stop

.

)

2

.

Open

thecircuit

breaker

,

manually

recharge

the

closing

springs

,

and

partially

slow

-

close

the

circuit

breaker

until

the

arcing

contacts

of

any

pole

or

poles

just

touch

.

3

.

Advance

the

adjustment

of

the

lagging

pole

or

poles

so

that

the

three

arcing

contacts

touch

simultaneously

within

1

/

32

"

.

This

adjustment

is

made

by

loosening

locking

bolt

or

set

screw

(

depending

on

model

) (

2

)

and

rotating

adjusting

stud

(

3

)

.

4

Complete

slow

-

close

operation

to

fully

closed

position

and

check

that

the

main

contact

compression

of

the

pole

or

poles

that

were

advanced

does

not

exceed

3

/

16

"

.

Also

,

the

arcing

contact

springs

on

these

poles

should

not

be

fully

compressed

.

If

the

3

/

16

"

dimension

is

exceeded

,

the

entire

procedure

should

be

repeated

to

obtain

the

correct

gap

at

“

A

”

.

NOTE

:

Occasionally

,

the

centerpole

contact

pressure

may

slightly

exceed

3

/

16

"

However

,

if

the

outer

poles

are

within

3

/

16

"

dimension

and

the

arcing

contact

springs

of

the

Courtesy of NationalSwitchgear.com

IB

6.2

.

1.7

D

Page

8

ASEA

BROWN

BOVERI

center

pole

are

not

fully

compressed

no

readjustments

need

be

made

.

When

this

condition

exists

,

the

center

pole

parts

before

the

outer

poles

on

opening

.

5

.

Open

breaker

,

recharge

closing

springs

,

remove

slow

-

close

bracket

,

fast

close

the

breaker

,

recheck

adjustments

for

7

/

64

"

to

3

/

16

”

,

“

A

”

dimension

.

NOTE

:

Fast

-

closing

the

circuit

breaker

may

result

in

a

slight

increase

in

contact

pressure

over

slow

-

closing

.

6

.

Tighten

the

locking

bolt

(

2

)

on

each

adjusting

stud

(

3

)

to

lock

the

contact

pressure

adjustment

stud

in

place

.

7

.

The

arc

chutes

can

now

be

replaced

,

and

the

interphase

barrier

assembly

can

now

be

reinstalled

.

8

.

Return

the

racking

screwto

its

original

position

by

turning

it

counterclockwise

approximately

two

to

three

turns

until

it

stops

.

9

.

The

circuit

breaker

can

now

be

replaced

in

its

compart

-

ment

and

returned

to

service

.

The

following

table

lists

the

millivolt

drop

and

resistance

values

for

the

circuit

breakers

,

when

manufactured

,

cov

-

ered

by

this

instruction

book

,

from

terminal

,

exclusive

of

the

primary

disconnects

.

Maximum

Micro

-

Ohms

Maximum

MV

Drop

*

Circuit

Breaker

5

HK

75

,

5

HK

150

,

5

HK

250

5

HK

350

,

1200

Ampere

8

40

5

HK

150

,

5

HK

250

,

5

HK

350

2000

Ampere

7

35

5

HK

350

,

3000

Ampere

4

20

5.3

CONTACT

AND

INSULATION

CLEANING

All

dirt

,

soot

or

grease

should

be

removed

from

circuit

breaker

contacts

and

surface

of

entire

current

-

carrying

structure

,

as

well

as

ail

insulation

surfaces

,

with

a

cloth

saturated

with

an

oil

-

free

OSHA

-

approved

solvent

.

Clean

-

ing

of

insulation

is

important

because

soot

and

dirt

can

accumulate

and

,

with

moisture

,

place

the

circuit

breaker

in

jeopardy

,

dielectrically

.

A

degree

of

burning

and

pitting

of

circuit

breaker

arcing

contacts

is

to

be

expected

from

normal

operation

;

also

,

on

highly

inductive

or

capacitative

circuits

and

after

major

interruptions

,

some

pitting

may

occur

on

main

contacts

.

A

moderate

amount

of

pitting

will

not

interfere

with

operation

of

the

contacts

.

When

necessary

to

dress

the

contacts

,

cover

the

puffer

nozzle

(

5

,

Figure

1

)

with

a

cloth

,

then

follow

the

contour

of

the

contacts

with

a

fine

file

.

Do

not

attempt

to

eliminate

pitting

entirely

.

Afterthis

maintenance

,

contact

pressure

(

paragraph

5.2

)

;

and

millivolt

drop

(

paraqraph

5.4

)

should

be

checked

.

NOTE

:

Replacement

of

contacts

is

required

when

:

after

repeated

dressing

of

any

contacts

,

less

than

50

%

of

the

original

contact

material

thickness

is

left

;

*

the

tips

of

the

stationary

arcing

contacts

have

been

eroded

away

;

any

contact

has

been

broken

or

cracked

.

*

On

5

HK

350

,

3000

the

arcing

contct

can

be

inverted

when

working

surface

is

reduced

to

less

than

50

%

.

*

Millivolt

drop

with

200

amperes

flowing

.

Breakers

operating

with

normal

loading

will

require

no

maintenance

if

the

millivolt

drop

does

not

exceed

150

%

of

the

listed

values

.

If

the

millivolt

drop

does

exceed

150

%

of

the

above

values

,

the

main

and

arcing

contacts

should

be

dressed

with

a

fine

file

,

cleaned

and

adjusted

for

proper

contact

pressure

and

then

rechecked

.

If

the

values

are

still

in

excess

of

the

150

%

value

,

the

bridge

pivot

pressure

should

be

readjusted

as

outlined

in

Paragraph

5.6

.

NOTE

:

For

optimum

performance

of

the

circuit

breakers

during

periods

of

increased

loading

,

it

is

recommended

that

the

listed

values

be

met

.

After

all

above

steps

have

been

taken

and

the

millivolt

drop

is

still

excessive

,

contact

the

nearest

district

office

for

recommendations

.

)

5.5

PUFFERS

(

3

,

Figure

1

)

CAUTION

CAUTION

CAUTION CAUTION

FOR

SAFETY

KEEP

CLEAR

OF

ALL

MOVING

PARTS

.

The

performance

of

the

puffers

should

be

checked

during

a

normal

maintenance

interval

.

Each

puffer

should

provide

a

moderate

blast

of

air

at

breaker

contacts

,

on

opening

of

thecircuit

breaker

.

This

can

be

detected

by

holding

a

piece

of

paper

approximately

8

-

1

/

2

"

x

11

"

over

the

top

of

the

contacts

and

opening

the

circuit

breaker

.

All

three

poles

must

have

puffing

action

or

the

circuit

breaker

must

not

be

placed

in

service

.

5.4

DC

MILLIVOLT

DROP

TEST

During

normal

maintenance

periods

the

condition

of

the

circuit

breaker

can

easily

be

determined

by

performing

a

millivolt

drop

test

.

This

test

shou

Id

be

performed

regardless

of

whether

the

circuit

breaker

had

interrupted

low

or

high

currents

or

has

minimum

operations

.

Courtesy of NationalSwitchgear.com

A

IK

I

!

MINK

IB

6.2

.

1.7

D

Page

9

ASEA

BROWN

BOVERI

5.8

ARC

CHUTES

The

arc

chutes

should

be

inspected

internally

to

ensure

that

no

breakaqe

occurred

to

liner

plates

or

arc

plates

.

Further

,

there

may

be

a

crust

formed

on

the

liner

plates

if

load

current

interruptions

were

close

to

the

continuous

current

rating

of

the

breaker

,

or

moderate

faults

were

interrupted

.

This

crust

should

be

removed

by

carefully

using

a

carbo

-

rundum

stone

or

scraper

.

The

arc

chute

should

then

be

blown

out

with

compressed

air

to

remove

the

resultant

dust

and

particles

.

After

400

%

accumulated

current

or

major

interruptions

occur

,

the

circuit

breaker

should

be

inspected

immediately

.

All

maintenance

checks

or

tests

noted

above

should

be

carried

out

,

plus

close

examination

of

the

arc

chute

.

Arc

plate

and

liner

plate

breakage

should

be

carefully

looked

for

,

along

with

excessive

erosion

of

the

arc

plates

.

Arc

plates

are

made

of

ceramic

material

and

perform

the

function

of

extracting

heat

from

the

arc

as

it

is

beinq

forced

into

and

elongated

by

them

.

The

leading

edges

become

coated

with

glass

that

comes

to

the

surface

from

the

extreme

heat

.

Direct

measure

of

use

is

the

amount

of

glass

beads

evident

.

When

the

entire

leading

edge

and

portions

of

the

flat

arc

plate

are

heavily

encrusted

with

glass

beads

,

the

arc

chute

should

be

replaced

.

It

should

be

noted

that

this

condition

will

vary

between

arc

chutes

on

the

same

breaker

because

of

single

-

phase

fault

and

asymmetrical

current

incidences

.

5.6

BRIDGE

PIVOT

PRESSURE

(

See

Figure

4

)

Bridge

pivot

pressure

should

be

adjusted

only

when

the

millivolt

drop

test

indicates

a

problem

.

When

adjustment

is

necessary

,

adjust

as

follows

:

1

.

Locking

bolt

(

2

)

should

be

loosened

on

solid

pushrod

models

.

Springloaded

pushrod

models

do

not

require

dis

-

connecting

.

2

.

Bridge

(

I

)

should

be

disconnected

from

adjusting

stud

(

3

)

on

solid

pushrod

models

.

3

.

Loosen

one

set

screw

(

6

)

in

one

pivot

nut

-

either

side

.

4

.

Tighten

bridge

pivot

nut

(

5

or

7

)

securely

(

approximately

75

ft

.

lbs

.

)

.

Then

gradually

backup

pivot

nut

(

approximately

1

/

2

to

1

-

1

/

2

flats

until

bridge

motion

is

just

free

when

bridge

is

moved

by

hand

.

On

spring

-

loaded

pushrod

models

,

lift

bridge

against

spring

and

then

slowly

release

,

ensuring

that

it

resets

freely

.

5

.

Tighten

set

screw

(

6

)

in

nut

that

was

loosened

,

reconnect

adjusting

stud

,

if

disconnected

,

and

readjust

contact

pres

-

sure

as

described

in

Paragraph

5.2

.

5.7

CLOSING

AND

OPENING

TIMES

After

operation

intervals

noted

previously

or

a

chanqe

in

bridge

pivot

adjustment

,

it

is

recommended

that

opening

and

closing

times

be

checked

by

use

of

a

cycle

counter

,

time

-

travel

analyzer

,

'

oscillograph

,

etc

.

,

to

monitorthe

time

from

energizing

to

arcing

contact

touch

or

part

.

*

For

measuring

circuit

breaker

speeds

,

analyzer

mounting

support

and

instructions

are

available

on

special

order

.

Circuit

breaker

closing

and

opening

times

should

be

within

the

following

time

ranges

for

normal

operation

.

5.9

OPERATING

MECHANISM

(

See

Figure

5

)

The

operating

mechanism

is

adjusted

at

the

factory

for

proper

operation

and

should

not

be

disturbed

unless

the

circuit

breaker

does

not

close

electrically

on

reclosing

duty

.

This

condition

is

caused

when

the

latch

check

switch

(

2

)

at

right

side

of

breaker

(

when

used

)

is

not

actuated

.

Circuit

breaker

should

not

close

before

trip

latch

(

4

)

has

reset

.

Latch

-

check

switch

adjustments

made

with

latch

(

4

)

against

stop

pin

(

3

)

:

1

.

Turn

in

adjusting

screw

(

1

)

until

contacts

of

switch

(

2

)

“

break

”

as

indicated

by

an

audible

click

or

check

with

bell

ringer

.

2

.

Retract

adjusting

screw

until

switch

contacts

“

make

’

'

.

3

Rotate

adjusting

screw

one

turn

more

.

(

Adjustment

screw

is

self

-

locking

.

)

Opening

Time

Range

-

MS

**

Closing

Time

Range

-

MS

*

*

5

HK

75

,

5

HK

150

,

5

HK

250

1200

Ampere

5

HK

150

and

5

HK

250

2000

Ampere

5

HK

350

,

1200

and

2000

3000

Ampere

50

-

90

23

-

35

60

-

95

23

-

35

50

-

90

65

-

95

23

-

35

23

-

35

*

*

At

125

Vdc

-

times

at

other

voltages

may

vary

slightly

.

NOTE

:

5

HK

250

,

80

/

kA

/

hiqh

momentary

,

same

as

5

HK

350

,

1200

and

2000

Ampere

,

in

table

above

.

NOTE

:

Below

0

°

C

,

the

closing

times

will

increase

(

but

with

no

reduction

in

closing

force

)

;

and

opening

times

will

be

within

the

limits

.

Adjustments

to

correct

speeds

,

if

found

to

be

outside

limits

,

are

critical

and

the

nearest

district

office

should

be

contacted

for

recommendations

.

Courtesy of NationalSwitchgear.com

IB

6.2

.

1.7

D

Page

10

ASEA

BROWN

BOVERI

©

@

\

A

"

O

IKVCR

iQ

)

'

OPENING

THE

R

.

H

.

HOUSING

PADLOCK

LOCKOUT

PLATT

-

4

Fig

.

7

—

Racking

Mechanism

Fig

.

5

—

Latch

Check

Switch

Adjustment

5.10

CONTROL

RELAY

ADJUSTMENT

(

See

Figure

6

)

The

control

relay

does

not

normally

require

any

adjustment

in

the

field

.

The

gap

between

the

control

device

lever

and

the

limit

switch

crank

should

be

between

0.06

"

and

0.09

"

with

the

closing

springs

charged

.

If

the

gap

measurement

is

incorrect

adjust

all

5

HK

circuit

breakers

except

5

HK

350

,

3000

by

shimming

either

at

the

lever

bracket

or

the

control

device

mounting

screws

as

illustrated

in

Figure

6

.

Before

changing

shims

at

the

two

control

device

screws

,

loosen

all

three

screws

,

replace

shims

and

then

tighten

all

three

screws

.

The

5

HK

350

,

3000

is

adjusted

by

means

of

an

adjusting

head

screw

fastened

to

the

lever

.

tioned

properly

,

which

should

be

corrected

as

follows

1

.

Remove

the

front

mechanism

coverplate

.

2

.

With

circuit

breaker

closed

,

make

adjustments

by

regu

-

lating

length

of

connecting

rod

(

1

)

for

1

/

8

"

minimum

to

3

/

16

"

maximum

clearance

at

“

A

”

between

trip

link

(

3

)

and

block

-

ing

lever

(

2

)

.

)

5.12

LUBRICATION

The

HK

circuit

breakers

are

lubricated

during

factory

assembly

:

1

.

All

mating

surfaces

of

moving

current

-

carrying

joints

have

been

lubricated

with

NO

-

OX

-

ID

special

grade

"

A

"

grease

manufactured

by

Sanchen

Company

.

2

.

All

other

mechanism

parts

,

bearings

,

pins

,

etc

.

,

have

been

lubricated

with

ANDEROL

757

manufactured

by

Huls

America

Inc

.

(

formerly

Nuodex

,

Inc

.

)

(

ABB

No

.

71299

A

,

4

oz

.

tube

)

.

If

the

grease

should

become

contaminated

or

parts

are

replaced

,

lubrication

should

be

done

with

NO

-

OX

-

ID

or

ANDEROLgrease

as

applicable

.

Use

of

othergreases

have

not

been

proven

by

test

and

are

not

recommended

.

NOTES

:

1

.

Do

not

use

NO

-

OX

-

ID

grease

on

any

main

and

moving

contact

surfaces

.

2

.

It

is

recommended

that

the

primary

disconnects

be

maintained

by

renewing

with

the

NO

-

OX

-

ID

grease

during

maintenance

periods

.

3

.

Do

not

use

light

oil

to

lubricate

any

mechanism

parts

.

In

emergency

situations

,

Anderol

732

may

be

used

as

a

temporary

lubricant

.

In

these

cases

,

allow

time

for

the

solvents

to

evaporate

prior

to

any

mechanical

operations

.

It

is

mandatory

that

the

breaker

undergo

thorough

lubrication

with

Anderol

757

at

the

next

maintenance

interval

.

Use

of

solvents

to

free

contaminated

lubricant

is

strictly

forbidden

without

immediate

relubrication

using

Anderol

757

.

Note

that

bearing

surfaces

must

be

repacked

and

this

will

require

disassembly

of

the

mechanism

.

Do

not

operate

the

circuit

breaker

without

completing

this

procedure

.

4

.

The

charging

motor

is

sealed

and

no

lubrication

is

required

.

SHIM

IF

REQUIRED

CONTROL

PAN

I

fff

"

~

~

Lli

I

'

LEVER LEVER

PIVOT

BRACKET

CONTROL

DEVICE

LIMIT

SWITCH

CRANK

Fig

.

6

—

Control

Relay

5.11

RACKING

MECHANISM

(

See

Figure

7

)

The

circuit

breaker

racking

mechanism

is

adjusted

at

the

factory

and

should

not

be

disturbed

unless

it

becomes

possible

to

close

the

breaker

during

a

racking

operation

.

If

it

is

possible

to

close

breaker

during

a

racking

operation

,

it

may

be

that

interlocked

blocking

members

are

not

posi

-

Courtesy of NationalSwitchgear.com